大花萱草在宁波地区观赏性和适应性的综合评价  

Evaluation of ornamental value and adaptability for Hemerocallis hybridus in Ningbo

作　　者：赵天荣 徐志豪 施永泰 黄坚 张艳 

机构地区：[1]宁波市农业科学研究院,浙江宁波315040

出　　处：《浙江农业学报》2015年第4期560-566,共7页Acta Agriculturae Zhejiangensis

基　　金：国家星火计划项目(2014GA701015);宁波市科技攻关项目(2013C10006);宁波市农科教结合项目(2012NK39);宁波市农科教结合项目(2008NK31)

摘　　要：以生长状况、整体姿态、花型、花美感、叶丛美感、花朵观赏期等性状为观赏性评价指标,以抗旱、抗寒、抗病虫、耐热、耐涝、耐强光和土壤要求等为生态适应性评价指标,利用灰色关联分析,对18份大花萱草材料在宁波地区的观赏性和适应性进行了评价和综合分析。结果表明:从观赏性来看,x4,x3,x8,x2,x5,x1与理想品种的关联度较高,均在0.71以上。从适应性来看,x5,x8,x3和x2适应性最强,与理想品种的关联度均在0.83以上。综合分析大花萱草材料x2,x3,x5,x8,x6和x13观赏价值和适应性均相对较高,符合传统观念和景观设计的需求,适合在宁波园林景观中推广应用。该研究的评价方法对大花萱草的良种筛选和杂优利用具有一定的指导意义。Ornamental value and adaptability of 18 varieties of Hemerocallis hybridus were evaluated in Ningbo by gray-correlation analysis. Evaluation indexes of ornamental value were based on the growth conditions,overall posture,flower type,inflorescence aesthetics,leafage aesthetics and flower ornamental period,etc. Evaluation indexes of adaptability were based on drought resistance,cold resistance,heat resistance,waterlogging tolerance,disease and pest resistance,etc. The results showed that from the point of ornamental value,the correlation degrees of x4,x3,x8,x2,x5 and x1 to ideal species were more than 0. 71 and from the point of adaptability,the correlation degrees of x5,x8,x2 and x3 to ideal species were more than 0. 83. The species of x2,x3,x5,x8,x6 and x13 could be used for landscape because they have good ornamental value and adaptability and are accord with the traditional attitudes and landscape design requirements. The study of the evaluation method has a certain guiding significance for screening and heterosis utilization of Hemerocallis hybridus.

关 键 词：大花萱草 灰色关联分析 观赏价值 评价 

分 类 号：S682.19[农业科学—观赏园艺]